code: def test_string_response(self):
      response = self.df.chat(
          "Will women with education high school of below will pay off loan on time?"
      )
      self.assertTrue(response.lower().find("true") != -1)
  
file_path: pandas-ai/integration/test_loan_payments.py
imports: import os
  import unittest
  from pandasai import SmartDataframe
  from pandasai.llm import OpenAI
label_desc: Use image node_id 4 for calling the TestLoanPayments obj's underlying member method code with example usage: obj.test_string_response() without return types